(19)
(11) EP 3 963 173 A1

(12)

(43) Date of publication:
09.03.2022 Bulletin 2022/10

(21) Application number: 20798225.7

(22) Date of filing: 28.04.2020
(51) International Patent Classification (IPC): 
E21B 33/06(2006.01)
E21B 47/103(2012.01)
E21B 47/10(2012.01)
(52) Cooperative Patent Classification (CPC):
E21B 33/06; E21B 47/07; G01M 3/002
(86) International application number:
PCT/US2020/030214
(87) International publication number:
WO 2020/223203 (05.11.2020 Gazette 2020/45)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 29.04.2019 US 201916397384

(71) Applicant: Baker Hughes Oilfield Operations LLC
Houston, TX 77073 (US)

(72) Inventor:
  • MCAULEY, Alexander
    Houston, TX 77073 (US)

(74) Representative: Osha Liang 
2, rue de la Paix
75002 Paris
75002 Paris (FR)

   


(54) TEMPERATURE BASED LEAK DETECTION FOR BLOWOUT PREVENTERS